Fake Expert´s Mark: genuine postage stamp with deceitful bogus expert´s mark or with faked expert´s mark
Genuine Expert´s Mark: authentic expert´s mark with no additional forgery
Forgery With Expert´s Mark: deceitful reprint of a postage stamp, all parts are bogus (design print, perforation, expert´s mark)
Fake Expert´s Mark: genuine postage stamp with deceitful bogus expert´s mark
Removed Expert´s Mark: postage stamp with genuine expert´s mark deceitful bogus eliminated
Fake Expert´s Mark Design: postage stamp with genuine expert´s mark with deceitful (partly) removed and / or supplemented expert´s mark design
Fake Expert´s Mark Position: postage stamp with genuine expert´s mark that was deceitful indented at the bottom edge of the stamp to simulate a deep expert´s mark
Supplemented Expert´s Mark: postage stamp with genuine expert´s mark with deceitful supplemented parts
Supplemented Gum With Recessed Expert´s Mark: genuine gum in which parts were deceitful added with leaving out the original expert´s mark